Bottom line, however, is that if you see blood in your stool or black tar-like stool, you should immediately consult with your doctor and let him or her determine the cause of the bleeding.

In brief:
Possibly

Agree with dr. Crespin.

Bottom line, however, is that if you see blood in your stool or black tar-like stool, you should immediately consult with your doctor and let him or her determine the cause of the bleeding.
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